Monte-Carlo simulation of supercooled liquids using a self-consistent local temperature

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We combine Creutz energy conservation with Kawasaki spin exchange to simulate the microcanonical dynamics of a system of interacting particles. Relaxation occurs via Glauber spin-flip activation using a self-consistent temperature. Heterogeneity in the dynamics comes from finite-size constraints on the spin exchange that yield a distribution of correlated regions. The simulation produces a high-frequency response that can be identified with the boson peak, and a lower-frequency peak that contains non-Debye relaxation and non-Arrhenius activation, similar to the primary response of supercooled liquids.
16 pages, 4 figures

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Disordered Systems and Neural Networks, Statistical Mechanics

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http://salesiana.dossiersoluciones.com/handle/123456789/107014

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0601313
 http://arxiv.org/abs/cond-mat/0601313
 doi:10.1016/j.physleta.2005.10.036

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arXiv